curl --request POST \
  --url https://api-sandbox.y.uno/v1/subscriptions \
  --header 'Content-Type: application/json' \
  --header 'X-Idempotency-Key: <x-idempotency-key>' \
  --data '
{
  "account_id": "YOUR_ACCOUNT_ID",
  "name": "Monthly Subscription Plan",
  "description": "Billed monthly",
  "merchant_reference": "sub-001",
  "country": "US",
  "amount": {
    "currency": "USD",
    "value": 9900
  },
  "frequency": {
    "type": "MONTH",
    "value": 1
  },
  "billing_cycles": {
    "total": 12
  },
  "customer_payer": {
    "id": "CUSTOMER_UUID"
  },
  "payment_method": {
    "type": "CARD",
    "vaulted_token": "VAULTED_TOKEN_UUID"
  },
  "availability": {
    "start_at": "2026-04-01T00:00:00Z",
    "finish_at": "2027-03-31T23:59:59Z"
  }
}
'

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "name": "<string>",
  "status": "ACTIVE",
  "amount": {
    "currency": "<string>",
    "value": 123
  },
  "frequency": {
    "type": "<string>",
    "value": 123
  },
  "created_at": "2023-11-07T05:31:56Z"
}